Java Reference
In-Depth Information
The
isAutoFlush()
method returns whether auto flush is on or not. It has no parameters.
It returns this value:
•
boolean
It throws this exception:
•
java.io.IOException
The
PageContext
Class
public abstract class PageContext extends java.lang.Object
The
PageContext
class is an abstract class, designed to be extended to provide implementa-
tion-dependent implementations by JSP engine runtime environments. A
PageContext
instance
is obtained by a JSP implementation class by calling the
JspFactory.getPageContext()
method, and is released by calling
JspFactory.releasePageContext()
.
The
PageContext
object provides a number of facilities to the page and/or component author
and page implementer. A list of some of these facilities includes
•
a single API to manage the various scoped namespaces
•
a number of convenience APIs to access various public objects
•
a mechanism to obtain the
JspWriter
for output
•
a mechanism to manage session usage by the page
•
a mechanism to expose page directive attributes to the scripting environment
•
mechanisms to forward or include the current request to other active components in the
application
•
a mechanism to handle
errorpage
exception processing
The
PageContext
class has 13 fields and 25 methods.
The
APPLICATION
Field
public static final java.lang.String APPLICATION
This field indicates a name used to store the
ServletContext
in the
PageContext
name table.
The
APPLICATION_SCOPE
Field
public static final int APPLICATION_SCOPE
This field indicates that a named reference remains available in the
ServletContext
until it is
reclaimed.
